[PATCH] ppc64: Fix add notifier crashes

The extraction of PCI stuff from struct device_node left some false
assumptions in notifier code.  As a result, dynamic add crashes when
non-PCI nodes are added.  This patch fixes these assumptions.

Signed-off-by: John Rose <johnrose@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 9e90d41131d8..a73faafaac8c 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -498,7 +498,7 @@ static int iommu_reconfig_notifier(struct notifier_block *nb, unsigned long acti
 
         switch (action) {
         case PSERIES_RECONFIG_REMOVE:
-                if (pci->iommu_table &&
+                if (pci && pci->iommu_table &&
                     get_property(np, "ibm,dma-window", NULL))
                         iommu_free_table(np);
                 break;